Caleffi Z50F : 2-Way Valve, Inverted Flare, 3.5 Cv, 30 psi ΔP, (2) NA10006 Adapters, Normally Closed Spring Return Valve Actuator, 24V AC, On/Off Control Signal, (1) SPST 0.4A Auxiliary Switch, Terminal Block

Caleffi Z50F : 2-Way Valve, Inverted Flare, 3.5 Cv, 30 psi ΔP, (2) NA10006 Adapters, Normally Closed Spring Return Valve Actuator, 24V AC, On/Off Control Signal, (1) SPST 0.4A Auxiliary Switch, Terminal Block

The Caleffi Z50F is a 2-way motorized zone valve assembly featuring an inverted flare valve body with (2) NA10006 adapters and a Z151000 normally closed spring-return actuator with screw terminal connections. Designed for hydronic heating and cooling systems, this assembly delivers reliable on/off control and automatic spring-return closure when power is removed for system protection.

UL873, cULus Listed, and CE certified, the Z50F meets UL 1995 section 18 requirements for use in air plenums and ducts. Its actuator includes an integrated SPST auxiliary microswitch for system feedback or control interlock functionality. The valve’s brass body, stainless steel stem, and EPDM seals provide dependable performance and long service life under demanding hydronic conditions.

Key Features

• 2-way motorized zone valve with normally closed actuator
• Inverted flare connections with (2) NA10006 adapters for flexible installation
• Spring-return actuator automatically closes upon power loss
• Screw terminal block for easy, secure wiring
• Integrated SPST auxiliary microswitch (0.4A @ 24V AC)
• UL, cULus, and CE certified for air plenum and duct applications

Technical Specifications

• Valve Type: 2-Way Straight
• Connection Type: Inverted Flare with (2) NA10006 Adapters
• Maximum Operating Pressure: 300 psi
• Maximum ΔP: 30 psi
• Cv Rating: 3.5 gpm
• Medium Temperature Range: 32–240 °F
• Electric Supply: 24V AC
• Power Consumption: 7 VA (at full capacity)
• Auxiliary Switch Rating: 0.4A @ 24V AC
• Maximum Glycol Concentration: 50%
• Medium: Water, glycol solutions, vapor (max 15 psi)

Datasheets

	Caleffi Z-One Zone Valve Technical Brochure
	Caleffi Z-One Motorized Zone Valve Installation and Commissioning Manual
	Caleffi Z50F Sell Sheet
	Submittal Data